Home / 1,553.97-2,145.52-1,454.78

Finding the Fourth Proportional to 1,553.97, 2,145.52 and 1,454.78

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Solution

The fourth proportional to 1,553.97, 2,145.52 and 1,454.78 is: 2,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.97 : 2,145.52 = 1,454.78 : x
  2. Step 2: Convert to fraction form
    1,553.97/2,145.52 = 1,454.78/x
  3. Step 3: Cross multiply
    1,553.97x = 2,145.52 × 1,454.78
  4. Step 4: Simplify right side
    1,553.97x = 3,121,259.59
  5. Step 5: Solve for x
    x = 3,121,259.59/1,553.97
  6. Step 6: Final answer
    x = 2,008.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.